Sustainable and green trends in using plant extracts for the synthesis of biogenic metal nanoparticles toward environmental and pharmaceutical advances: A review

Conventionally utilized physical and chemical routes for constructing nanoparticles are not eco-friendly. They are associated with many shortcomings like the requirement of specially designed equipment, templates, extremely high temperature, and pressure. Biosynthesis seems to be drawn unequivocal a...

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Bibliographic Details
Published in:Environmental research 2021-11, Vol.202, p.111622-111622, Article 111622
Main Authors: Soni, Vatika, Raizada, Pankaj, Singh, Pardeep, Cuong, Hoang Ngoc, S, Rangabhashiyam, Saini, Adesh, Saini, Reena V., Le, Quyet Van, Nadda, Ashok Kumar, Le, Thi-Thu, Nguyen, Van-Huy
Format: Article
Language:English
Subjects:
Biofabrication
Environmental application
Green chemistry
Metal nanoparticles
Pharmaceutical application
Plant extract
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Summary:Conventionally utilized physical and chemical routes for constructing nanoparticles are not eco-friendly. They are associated with many shortcomings like the requirement of specially designed equipment, templates, extremely high temperature, and pressure. Biosynthesis seems to be drawn unequivocal attention owing to its upsurge of applications in different fields like; energy, nutrition, pharmaceutical, and medicinal sciences. To harness the biological sources, the present review describes an environment-friendly route to generate biogenic nanoparticles from the natural plant extracts and the followed mechanisms for their synthesis, growth, and stabilization. The present review summarizes the recent trends involved in the photosynthesis of metallic nanoparticles and their effective use in controlling malaria, hepatitis, cancer, like various endemic diseases. Also, various characterization approaches, such as UV–visible spectrophotometry, Fourier transform infrared spectroscopy, powder X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and energy-dispersive X-ray spectroscopy, are discussed here examine the properties of as-fabricated nanoparticles. Various plant parts like leaves, stems, barks, fruit, and flowers are rich in flavonoids, phenols, steroids, terpenoids, enzymes, and alkaloids, thereby playing an essential role in reducing metal ions that generate metallic nanoparticles. Herein, the uniqueness of phytofabricated nanoparticles along with their distinctive antibacterial, antioxidant, cytotoxic, and drug delivery properties are featured. Lastly, this work highlights the various challenges and future perspectives to further synthesize biogenic metal nanoparticles toward environmental and pharmaceutical advances in the coming years. [Display omitted] •The potential of secondary metabolites from plant extract as bioreductant.•Diverse fabrication routes to prepare the metallic nanoparticles are highlighted.•Decorated metal nanoparticles toward environmental and pharmaceutical advances are highlighted.
ISSN:0013-9351
1096-0953
DOI:10.1016/j.envres.2021.111622